55485933958455 has 512 divisors, whose sum is σ = 123619895304192. Its totient is φ = 20507738112000.

The previous prime is 55485933958447. The next prime is 55485933958459.

It is a happy number.

55485933958455 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55485933958455 - 2³ = 55485933958447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55485933958459) by changing a digit.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 45742731429 + ... + 45742732641.

It is an arithmetic number, because the mean of its divisors is an integer number (241445108016).

Almost surely, 2^{55485933958455} is an apocalyptic number.

55485933958455 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55485933958455 is an abundant number, since it is smaller than the sum of its proper divisors (68133961345737).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55485933958455 is a wasteful number, since it uses less digits than its factorization.

55485933958455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027.

The product of its digits is 11664000000, while the sum is 78.

The spelling of 55485933958455 in words is "fifty-five trillion, four hundred eighty-five billion, nine hundred thirty-three million, nine hundred fifty-eight thousand, four hundred fifty-five".